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Post by 04prixgt04 on Mar 7, 2013 9:58:23 GMT -6
the last week my bike has been backfiring and popping like crazy at low and hi r PM's. ,I have adjusted the air fuel screw every which way I can think possible a quarter turn at a time in and out and nothing. Wonder what else it could be? Exhaust is good and tight.
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Post by 04prixgt04 on Mar 7, 2013 9:58:54 GMT -6
it gets worse every time I ride. when I'm at a dead stop and I give it gas the scooter doesn't even go it feels like the transmission is slipping unless I buy baby the RPM's and just give it the minimal amount of gas. Then it will go smooth. But otherwise it feels like whatever is spinning the wheel is not connecting if that makes sense. I'm really not sure how else to describe it. oh yes the most important part, when my girlfriend who weighs around 200 pounds is on the back of the bike it has no problems it rides does not backfire and the engine slipping at takeoff problem is not there.
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Post by alleyoop on Mar 7, 2013 12:54:07 GMT -6
Check you Exhaust connection the FLANGE to the motor. You may have lost a stud or nut and is leaking bad. It may have blown out the gasket. Putting weight on the back probably is causeing a littleshift of the motor and putting more pressure on the muffler and pipe and making a better seal that is probably why it runs better then. Alleyoop  |
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Post by terrilee on Mar 7, 2013 17:39:59 GMT -6
im gonna get laughed at for this BUT
what kind of plug are you running?when i had to replace the stator,
i put a regular plug in
it backfired alot
i tried every thing the guys said
and could never find the prob.
Then i did a plug chop and realized i didnt have the NGK in,
put it in and no more backfire
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Post by imnts2 on Mar 11, 2013 10:44:55 GMT -6
Terrilee.. That is the first time I have heard of a plug causing backfire but I believe you. I like NGK plugs too but I really suspect it was not the brand but perhaps a defective plug or not tight or something. Strange but engines are always doing somnething a little strange.
Good to see you are still at it.
lefty2
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Post by justbuggin2 on Mar 11, 2013 11:34:23 GMT -6
check for air leaks in the filter and the manufold
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Post by skyrider on Mar 11, 2013 14:02:45 GMT -6
Have you check valve adjustment?
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Post by terrilee on Mar 11, 2013 16:13:58 GMT -6
Terrilee.. That is the first time I have heard of a plug causing backfire but I believe you. I like NGK plugs too but I really suspect it was not the brand but perhaps a defective plug or not tight or something. Strange but engines are always doing somnething a little strange. Good to see you are still at it. lefty2
LEFTY2
your right , i had never heard of it either.
ask the guys here, there was a thread
as i tried to fix the backfire
about 10-14 days later is when i noticed the plug,
changed it. BAM NO MORE BACKFIRE |
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..BAD TO THE BONE..
